//
//  Book.h
//  demo
//
//  Created by chenzm on 2018/8/17.
//  Copyright © 2018年 chenzm. All rights reserved.
//

#import <Foundation/Foundation.h>
#import "Author.h"

@interface Book : NSObject{
    Author *_author;
}

//名字
@property(nonatomic,copy) NSString *name;
///价格
@property(nonatomic,assign)float price;

@end
